1-20 of 55 Search Results for

weld bead morphology

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930039
EISBN: 978-1-62708-359-1
... by characterizing the size or shape of the weld. An example of this is where factors related to the welding procedure, such as inadequate weld size, convexity of the bead, or lack of penetration, may cause a weld to fail. In other cases, it is important to characterize metallurgical factors such as weld metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820099
EISBN: 978-1-62708-339-3
... Solidification morphologies of fusion welded alloy 2205. (a) As-welded base metal. (b) As-welded composite region. (c) As-welded weld metal. (d) Postweld heat treated solution-annealed base metal. (e) Solution annealed composite region. (f) Solution annealed weld metal. Source: Ref 2 Mechanical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030096
EISBN: 978-1-62708-282-2
... of a weldment shown in Fig. 1 are for a single-pass weld, similar solidification patterns and compositional differences can be expected to occur in underlying weld beads during multipass applications. Fig. 1 Weld cross section. Source: Ref 3 Fig. 2 Concentration profile of chromium...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930249
EISBN: 978-1-62708-359-1
... constitution diagram for stainless steel weld metal To use this diagram, both the chromium and nickel equivalents are first calculated from the composition of a given weld bead. Next, these equivalents are plotted as coordinates on the Schaeffler diagram. This allows an estimated weld metal...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2011
DOI: 10.31399/asm.tb.jub.t53290099
EISBN: 978-1-62708-306-5
... pool (larger weld bead), and the isotemperature contours elongate more toward the back of the arc, for low-conductivity materials ( Fig. 5.3a ). For aluminum ( Fig. 5.3c ), a larger heat input would be required to obtain the same weld size as the stainless steel weldment. The effect of travel speed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930217
EISBN: 978-1-62708-359-1
...), microstructures and morphologies become important. A wide range of microstructures can be developed based on cooling rates, and these microstructures depend on energy input, preheat, metal thickness (heat sink effects), weld bead size, and reheating effects due to multipass welding. Asa result of their different...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.htcma.t52080259
EISBN: 978-1-62708-304-1
... of Welding Services Inc. Maximum outer tube metal temperature limits based on oxidation for common ferritic steels used in waterwalls, as suggested by a boiler designer Table 10.4 Maximum outer tube metal temperature limits based on oxidation for common ferritic steels used in waterwalls...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820013
EISBN: 978-1-62708-339-3
... dependent on the skill of the welder. Lack of fusion or slag inclusions are potential problems. The relatively small beads usually result in a high percentage of refining in multipass welds, and very good toughness is achievable with some electrodes. Very good quality. Porosity or lack of fusion can...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130503
EISBN: 978-1-62708-284-6
... was used to butt weld two 19 mm (3/ 4 in.) thick A709-grade 250 plates. The joint design was a simple square groove butt joint with 1.6 mm (1/ 16 in.) root opening. It was designed to be welded in two passes, with a single pass on each side of the plate. After the first side was welded, the weld bead...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930003
EISBN: 978-1-62708-359-1
... to a large extent by the welding parameters. The volume is directly proportional to the arc current (heat input) and inversely proportional to the welding speed. In addition, the speed of the moving heat source has an influence on the overall bead shape. For arc welding processes, the puddle shape changes...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820177
EISBN: 978-1-62708-339-3
... limited grinding were performed. After welding, dye-penetrant inspection revealed many thin, branched cracks in the HAZ of welds, as shown in Fig. 5 . Fig. 5 Intergranular cracking in HAZ of stringer bead weld on type 304 (S30400) stainless steel pipe due to zinc embrittlement. Weld area had been...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.cw.t51820043
EISBN: 978-1-62708-339-3
... Abstract Austenitic stainless steels exhibit a single-phase, face-centered cubic structure that is maintained over a wide range of temperatures. This chapter provides a basic understanding of grade designations, properties, and welding considerations of austenitic stainless steels. It also...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120065
EISBN: 978-1-62708-269-3
..., the weld fusion zone in titanium alloys is characterized by coarse, columnar prior-beta grains that originated during weld solidification. The size and morphology of these grains depend on the nature of the heat flow that occurs during weld solidification. Fig. 9.1 Columnar beta grains in a spot...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.t66560427
EISBN: 978-1-62708-291-4
... of a weld bead or in the molten weld pool creep. Time-dependent strain occurring under stress. The creep strain occurring at a diminishing rate is called primary creep; that occurring at a minimum and almost constant rate, secondary creep; and that occurring at an accelerating rate, tertiary creep. critical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610585
EISBN: 978-1-62708-303-4
... Abstract This appendix provides detailed information on design deficiencies, material and manufacturing defects, and service-life anomalies. It covers ingot-related defects, forging and sheet forming imperfections, casting defects, heat treating defects, and weld discontinuities. It shows how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.lmcs.9781627082914
EISBN: 978-1-62708-291-4
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290251
EISBN: 978-1-62708-319-5
... tools, pen knives, or sculpting tools. Figure 11.4 is an example of the block that presents an easily carved bronze. After firing, the material reaches 450 MPa (65 ksi) tensile strength. Strands of precious metal wire are formed by extrusion and are formed into loops or other creations. Beads...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230401
EISBN: 978-1-62708-298-3
... is required to obtain a smooth bead contour. In small amounts, the argon does not degrade the quality of the weld; thus, both gases are used together [Barker]. A combination of five parts helium to one part argon by volume is recommended as a gas shield. Typical flow rates are 1.4 to 2.8 m 3 /h of helium...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2007
DOI: 10.31399/asm.tb.smnm.t52140165
EISBN: 978-1-62708-264-8
..., and in weld metal, where the small liquid pool allows even faster cooling rates, the spacings can be as small as 100 μm. The diameters of the dendrite main stalks (called primary dendrite arms) are smaller than their spacing, d , by approximately 10 times. The diameter of a human hair is approximately 50 μm...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.9781627082679
EISBN: 978-1-62708-267-9